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Spesifisitas Substrat Dinoflagellata Epibentik Penyebab Ciguatera Fish Poisoning Berdasarkan Analisis Aku Dan Afk Di di Perairan Pulau Harapan, Kepulauan Seribu Fachrul Razi; Riani Widiarti; Yasman -
Jurnal Akuatika Vol 5, No 1 (2014): Jurnal Akuatika
Publisher : Fakultas Perikanan dan Ilmu Kelautan

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Ciguatera Fish Poisoning (CFP) yang disebabkan oleh Ciguatoksin, dihasilkan oleh beberapa jenis Dinoflagellata epibentik yang umumnya menempel pada makroalga. Dinoflagellata epibentik juga dapat menempel pada substrat lain, seperti pada sedimen atau pecahan karang. Penelitian mengenai Dinoflagellata epibentik telah dilakukan di Pulau Harapan, Kepulauan Seribu pada bulan Maret 2013, di empat stasiun yang terletak di sisi timur, utara, selatan, dan barat pulau. Penelitian ini bertujuan untuk mengetahui spesifisitas substrat Dinoflagellata epibentik pada berbagai macam tipe substrat.Penelitian dilakukan dengan mengoleksi berbagai substrat di rataan terumbu setiap stasiun yaitu pasir, karang mati, lamun Thallasia, dan makroalga Padina, untuk kemudian dimasukkan ke dalam wadah plastik berisi air laut. Setelah itu, untuk melepaskan Dinoflagellata bentik dari substrat, dilakukan proses pengocokan. Sampel kemudian disaring dengan saringan bertingkat (125µm dan 20µm) dan diamati di bawah mikroskop. Data hasil penelitian dianalisis menggunakan Analisis Faktorial Koresponden (AFK) dan Analisis Komponen Utama (AKU).Berdasarkan hasil penelitian, diperoleh dua belas spesies Dinoflagellata epibentik yang tujuh diantaranya merupakan spesies yang berpotensi toksik. Berdasarkan hasil analisis AFK dan AKU diketahui bahwa spesifisitas substrat dari Gambierdiscus toxicus adalah makroalga; Amphidiniopsis hirsutum, Prorocentrum concavum, Coolia sp., dan Amphidinium sp. adalah substrat pasir; Ostreopsis ovata, Ostreopsis lenticularis, dan Prorocentrum rhatymum adalah substrat lamun, karang, dan pasir; Ostreopsis siamensis, Prorocentrum lima, Prorocentrum emarginatum, dan Sinophysis microcephalus adalah substrat lamun, karang, dan makroalga.

TOXICITY TEST OF EXTRACTS OF THE FOUR SEA CUCUMBER (FAMILY HOLOTHURIIDAE) FROM EAST PENJALIRAN ISLAND, SERIBU ISLANDS, JAKARTA BASED ON THE BRINE SHRIMP LETHALITY TEST (BSLT) Arum Albuntana; Yasman Yasman; Wisnu Wardhana
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 3 No. 1 (2011): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Sea cucumber is one of the marine bioactive compounds resources . The properties of the bioactive compound are biologically shown by their functions as anticancer, antifungi, hemolytic, and immunomodulatoryt. The purpose of this research is to predict (determine) the toxicity level of the extracts of Actinopyga miliaris, Holothuria leucospilota, Bohadschia argus, and Bohadschia marmorata collected from Penjaliran Timur Island, Seribu Island National Park Jakarta. The method used in this research is Brine Shrimp Lethality Test (BSLT). The result of this research showed that all of the extract from those species are active in BSLT, indicated by LC50 values of less than 1000 μg/ml. Bohadcshia argus is highest active species indicated by LC50 value 69,254 μg/ml. Water fraction of H. leucospilota’s crude extract is the most active fraction indicated by LC50 50,968 μg/ml.Keywords: Brine Shrimp Lethality Test, Crude Extract, Fractionation, Family Holothuriidae, Sea Cucumber

Nutrient Utilizations and Intestinal Morphology of Broilers Treated with Lactobacillus plantarum AKK30 – Oligosaccharides Synbiotic H. Julendra; A. Sofyan; M. F. Karimy; Abinawanto Abinawanto; Yasman Yasman
Tropical Animal Science Journal Vol. 43 No. 2 (2020): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Lactobacillus plantarum AKK30 inoculum in de Maan Rogosa Sharpe Broth (MRSB) grown on media containing oligosaccharides (inulin or mannan oligosaccharides/MOS) was studied in vitro and in vivo. In vitro assay was conducted to characterize metabolite profiles and its effect on pathogenic bacteria, while in vivo assay was conducted to study the metabolic energy, nitrogen retention, and intestinal morphology of broilers. A total of 24 male broilers-40-day-old (average body weight= 1.725±0.05 kg) strains Cobb-500 were used, where 20 birds were added 1% inoculum L plantarum AKK30 of daily intake and randomly distributed in five treatments and four replications consisted of: A) MRSB + L. plantarum AKK-30 (10⁷ cfu g-1); B) MRSB + inulin 0.5% (w v-1); C) MRSB + MOS 0.5%(w v-1); D) L. plantarum AKK-30 (10⁷ cfu g-1) + MRSB + inulin 0.5% (w v-1).; and E) L. plantarum AKK-30 (10⁷ cfu g-1) + MRSB + MOS 0.5% (w v-1), while 4 birds were fasted as endogenous chicken. The results showed that the highest isoleucine and threonine were found in group E. The highest oleic acid and the lowest conjugated linoleic acid (CLA) were observed in all treatments and inoculum did not affect antibacterial activity. The metabolizable energy values and nitrogen retention in group D and E were higher than other treatments (p<0.05). The lowest height of villi was observed in group A (p<0.05). In conclusion, the addition of oligosaccharides inulin or mannan oligosaccharide (MOS) affects the metabolite profiles of Lactobacillus plantarum AKK30 and their synbiotic effects improve intestinal morphology, metabolizable energy, and nitrogen retention in broilers.

Intestinal Morphology, Energy Availability, and Growth Performance of Broilers Treated with the Combination of Probiotic and Inulin H. Julendra; A. Sofyan; L. Istiqomah; M. F. Karimy; Abinawanto Abinawanto; Yasman Yasman
Tropical Animal Science Journal Vol. 44 No. 1 (2021): Tropical Animal Science Journal
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5398/tasj.2021.44.1.39

Probiotic and prebiotic or their combinations can potentially function as an alternative to antibiotics growth promoters (AGPs) for broiler. This study was designed to investigate the growth performance, intestinal microstructure, and nutrients digestibility of broilers administered with probiotics of Lactobacillus plantarum AKK30 and Saccharomyces cerevisiae B18 in combination with inulin. A total of 275 male chickens (initial bodyweight of 47±0.05 g) were reared for growth performance evaluation. At the 32-d-old, 25 male chickens were necropsied for intestinal microstructural analysis, while the other 25 male chickens were selected for evaluation of digestibility (body weight= 1525±0.08 g). Treatments of probiotics in combination with different levels of inulin consisted of control with probiotics without inulin (S0), probiotics with 0.5% of inulin (S1), probiotics with 1.0% of inulin (S2), probiotics with 1.5% of inulin (S3), and commercial probiotics without inulin (Sc), which were arranged in a completely randomized design with five replications. Results showed that body weight gain and performance index in broilers treated prebiotics in combination with 0.5% inulin (S1), 1% inulin (S2), and commercial probiotic without inulin (Sc) were significantly higher (p<0.05) than those in control broiler chickens that were treated with probiotics without inulin. Feed intake showed no differences among treatments, whereas feed conversion ratios in broiler chickens treated with the commercial probiotics (Sc) or probiotics in combination with inulin at 0.5% (S1) and 1.0% (S2) were lower than control chickens. Metabolizable energy, nitrogen retention, and villi height in chickens treated with probiotics in combination with 0.5% inulin (S1) and 1.0% inulin (S2) were higher than those in the control group. In conclusion, the administration of probiotic combined with inulin at the level of either 0.5 or 1.0% improves broiler performance, intestinal microstructure, and nutrients digestibility.

OBSERVATION ON THE FEEDING OF NUDIBRANCH Phyllidia varicosa LAMARCK, 1801 ON THE SPONGE Axinyssa cf. aculeata WILSON, 1925 IN CORAL REEFS OF PRAMUKA ISLAND, THOUSAND ISLANDS NATIONAL PARK, INDONESIA Yasman, Yasman
Makara Journal of Science Vol. 7, No. 1
Publisher : UI Scholars Hub

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During three months period observations (November 16 to January 13, 2001) in coral reefs of Pramuka Island Indonesia, the nudibranch Phyllidia varicosa was observed while feeding on the sponge Axinyssa cf. aculeata. During feeding, P. varicosa extended externally the pharyngeal bulb onto the sponge causing visible somatic damage. The behaviors of contracting the body and retracting the rhinopores inside the rhinotube were also observed while feeding. Observations on the feeding of Phyllidia varicosa on the sponge Axinyssa cf. aculeata and the presence of a visible somatic damage on the prey due to predation are reported for the first time.

Effectiveness of Powder and Solid Ragi Starter on Production of Bioethanol from Rice Straw Hydrolyzate Ediviani, Wanda; Octavia, Silvi; Yasman, Yasman
Makara Journal of Science Vol. 8, No. 1
Publisher : UI Scholars Hub

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Rice straw is one of the most abundant forms of agricultural wastes in Indonesia. Rice straw contains polysaccharide in the form of cellulose and hemicellulose, which can be used as raw materials in the production of bioethanol. This study aims to examine the effectiveness of bioethanol production from rice straw’s hydrolyzate. Research was carried out by fermenting the sample using two types of starters (Baker's yeast, known as powder starter (F); and Tapai’s starter, known as solid starter (S) with a control of pure yeast, Saccharomyces cerevisiae. Glucose levels were measured using a glucometer, and bioethanol levels were analyzed using high-performance liquid chromatography (HPLC). In this study, split plot design was used as a data analyzer with two treatment factors: starter’s inoculum (R) and time of fermentation (T). This study shows that there is no significant difference between the starters’ levels of bioethanol production. However, S’s treatment produced higher levels (5,1 g/L) of bioethanol compared to F’s (4,8 g/L); the rate of bioethanol production in S’s treatment is also higher (1,3 g/L.h) than that in F’s (1,2 g/L.h). This study concludes that Tapai’s starter is more effective in producing bioethanol from rice straw’s hydrolyzate.

Effectiveness of Powder and Solid Ragi Starter on Production of Bioethanol from Rice Straw Hydrolyzate Ediviani, Wanda; Octavia, Silvi; Yasman, Yasman
Makara Journal of Science Vol. 18, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Rice straw is one of the most abundant forms of agricultural wastes in Indonesia. Rice straw contains polysaccharide in the form of cellulose and hemicellulose, which can be used as raw materials in the production of bioethanol. This study aims to examine the effectiveness of bioethanol production from rice straw’s hydrolyzate. Research was carried out by fermenting the sample using two types of starters (Baker's yeast, known as powder starter (F); and Tapai’s starter, known as solid starter (S) with a control of pure yeast, Saccharomyces cerevisiae. Glucose levels were measured using a glucometer, and bioethanol levels were analyzed using high-performance liquid chromatography (HPLC). In this study, split plot design was used as a data analyzer with two treatment factors: starter’s inoculum (R) and time of fermentation (T). This study shows that there is no significant difference between the starters’ levels of bioethanol production. However, S’s treatment produced higher levels (5,1 g/L) of bioethanol compared to F’s (4,8 g/L); the rate of bioethanol production in S’s treatment is also higher (1,3 g/L.h) than that in F’s (1,2 g/L.h). This study concludes that Tapai’s starter is more effective in producing bioethanol from rice straw’s hydrolyzate.

STATUS PERIKANAN PURSE SEINE DAN KEBIJAKAN PENGELOLAANNYA DI PPS KENDARI, SULAWESI TENGGARA DAN IMPLIKASINYA PADA PERIKANAN BERKELANJUTAN Laksmana, Bayu Arif Pasa; Yasman, Yasman; Hernuryadin, Yayan
Jurnal Kebijakan Perikanan Indonesia Vol 16, No 2 (2024): (Nopember) 2024
Publisher : Pusat Riset Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkpi.16.2.2024.111-123

Penelitian ini mengevaluasi hasil tangkapan purse seine di Pelabuhan Perikanan Samudera (PPS) Kendari, fokus pada ikan cakalang dan tuna sirip kuning di Laut Banda. Analisis ukuran ikan pada Agustus dan September menunjukkan variasi signifikan, dengan mayoritas ikan berukuran juvenile pada Agustus dan sebagian memenuhi ukuran layak tangkap pada September. Meskipun terjadi peningkatan produksi tuna dalam dua tahun terakhir, kebijakan moratorium tampaknya berdampak negatif. Dominasi cakalang dan tuna sirip kuning menyoroti pentingnya pengelolaan perikanan yang efektif, terutama dalam menetapkan peraturan ukuran mata jaring. Dinamika musim penangkapan ikan pelagis besar, seperti cakalang dan tuna sirip kuning, di Laut Banda, membutuhkan pengelolaan adaptif dan praktik penangkapan selektif untuk menjaga keberlanjutan perikanan. Rekomendasi kebijakan mencakup pengelolaan musim penangkapan yang terkoordinasi, peningkatan pengawasan selama bulan dengan tingkat tangkapan tinggi, dan pemantauan suhu permukaan laut serta klorofil. Kebijakan konservasi, termasuk penetapan ukuran minimum tangkapan untuk melindungi ikan juvenil, harus diterapkan, sambil melibatkan nelayan dan masyarakat lokal dalam pengambilan keputusan melalui program edukasi. Dukungan untuk riset lebih lanjut mengenai pertumbuhan dan perilaku ikan cakalang serta tuna sirip kuning menjadi esensial. Kerjasama antara pemerintah, nelayan, industri perikanan, lembaga riset, dan LSM diperlukan untuk mencapai keseimbangan antara pemenuhan kebutuhan manusia dan pelestarian lingkungan laut, terutama di WPP 714 dan 715 di Indonesia Timur.This research evaluates the catch results of purse seine fishing at the Samudera Fishing Port (PPS) Kendari, focusing on skipjack and yellowfin tuna in the Banda Sea. The analysis of fish sizes in August and September reveals significant variations, with the majority being juvenile in August and some reaching catchable sizes by September. Despite increased tuna production over the past two years, the moratorium policy seems to have negatively impacted the catch. The dominance of skipjack and yellowfin tuna underscores the importance of effective fisheries management, particularly in enforcing regulations regarding mesh size. The dynamics of large pelagic fishery seasons, such as skipjack and yellowfin tuna in the Banda Sea, require adaptive management and selective fishing practices to ensure sustainability. Policy recommendations include coordinated management of fishing seasons, enhanced monitoring during high catch months, and improved monitoring of sea surface temperature and chlorophyll. Conservation policies, including setting minimum catch sizes to protect juvenile fish, should be implemented, involving fishermen and local communities in decision-making through educational programs. Further research support on the growth and behavior of skipjack and yellowfin tuna is essential. Collaboration between the government, fishermen, the fishing industry, research institutions, and NGOs is necessary to achieve a balance between human needs and marine environmental conservation, especially in WPP 714 and 715 in Eastern Indonesia.

Penerepan Budaya Inovasi & Kreatifitas dengan Metode DMAIC dan Kaizen ( Continuous Improvement) pada PT. Indolakto Pasuruan Yasman Yasman; Limgiani Limgiani
MENAWAN : Jurnal Riset dan Publikasi Ilmu Ekonomi Vol. 2 No. 6 (2024): November: MENAWAN: Jurnal Riset dan Publikasi Ilmu Ekonomi
Publisher : Asosiasi Riset Ekonomi dan Akuntansi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/menawan.v2i6.979

A culture of innovation is very important to implement in a company to be able to maintain the existence and survival of the company. Successful innovation depends significantly on ability, skills and interpreting a rapidly changing environment. Apart from that, employee involvement also influences success in innovation. Innovation and creativity use the DMAIC (Define, Measure, Analyze, Improve and Control) method which is associated with KAIZEN in Japanese terms, which means "continuous improvement" which emphasizes human effort, morals, communication, training, cooperation, empowerment and self-discipline . The purpose of this research is to find out the strategy carried out by PT. Indolakto Pasuruan in motivating its employees to implement a culture of innovation as well as identifying factors inhibiting its implementation and efforts made to minimize these obstacles. This research uses qualitative research methods and tests the validity of this research data using source triangulation and member checking. From the results of this research, researchers concluded that implementing a culture of innovation in companies can have a positive impact on the company's survival. Research implications - This research makes a contribution to human resource management related to corporate culture.

Global Human Resource Management in Improving Corporate Competitiveness. Yasman Yasman; Limgiani Limgiani
International Journal of Educational Evaluation and Policy Analysis Vol. 2 No. 1 (2025): International Journal of Educational Evaluation and Policy Analysis
Publisher : Asosiasi Riset Ilmu Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/ijeepa.v2i1.120

Human Resource Management (HRM) has become essential to a company's success in the global marketplace in the fast-paced age of globalisation. Global HRM is an approach that takes into account global elements like market demands, labour laws, and cultural norms. Managing scattered teams, adjusting to cultural diversity, and differing labour laws are among the difficulties. Global HRM does, however, also offer advantages, such as easier access to talent from throughout the world. This journal attempts to offer useful insights for HRM practitioners and business executives in managing human resources in the age of globalisation through in-depth examination.Literature reviews serve as the data source for the qualitative and descriptive research methodology. The study's findings emphasise how crucial global human resource management is to accomplishing corporate objectives in a variety of international marketplaces. Flexibility, efficient resource management, improving cultural sensitivity, and employee participation are some of the suggested remedies. In the age of global business, companies can improve performance and accomplish their objectives by putting in place efficient HRM strategies.

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